Locomotive-furnace.



D. GOFF. LOCOMOTIVE FURNACE.

APPLICATION FILED JAN.16, 1911.

Patented Dec. 10, 1912.

a SHEETS-SHEET 1.

INVENTOR WITNESSES M v walla/0 All D. GOPP.

LOCOMOTIVE FURNACE.

AIfPLIOATION FILED JAN. 16, 1911.

1,046,583, I Patented Dec. L l0, 1912.

3 SHEETSSHEET 2.

WITNESSES @QYQ/W ,Y BY %3 ATTORN EYS D. GOFF.

LOOOMOTIVE FURNACE.

-APPLIGATION FILED JAN.16, 1911.

1,046,583. Patented Dec. 10, 1912.

3 SHEETS-SHEET 3.

tlNTTEl) STATES PATENT @FFTQE.

DANIEL GOFF, OF MILLVILLE, NEW JERSEY, ASSIGNOR TQ GOFF GRAVITY BOILERFEED COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

LOCOMOTIVE-FURNACE.

To all whom it may concern:

Be it known that I, DANIEL Gorr, a citizen of the United States,residing at Millville, county of Cumberland, State of New Jersey, haveinvented a new and useful Locomotive-Furnace, of which the following isa specification.

This invention relates to a new and useful induced draft and smokeconsumer for use in connection with a locomotive type of boiler or ofthe type shown in my copending application, No. 590,850, filed November5th, 1910, but no claims are here made for subject matter claimed insaid application, such asthe steam chamber with the jacket formingchambers around the steam chamber, the communications between thechambers and the boiler, the valve controlling the communication, andmeans for actuating the valve by the steam from the boiler.

It has for an object to provide a construction whereby steam and air maybe introduced in suitable quantities into the fire box at anadvantageous point to cause a more complete combustion of the fuelproducts and serve as an efficient draft producing means. Theintroduction pf the steam and air is regulated by a suitable apparatuswhich may be controlled either manually or automatically, whereby thequantities of the mixture may be proportioned properly to produce thedesired combustion.

It further consists of other novel features of construction, all as willbe hereinafter fully set forth.

For the purpose of illustrating my invention, I have shown in theaccompanying drawings one form thereof which is at present preferred byme, since the same has been found in practice to give satisfactory andreliable results, although it is to be understood that the variousinstrumentalities of which my invention consists can be variouslyarranged and organized and that my invention is not limited to theprecise arrangement and organization of these instrumentalities asherein shown and described.

Figure 1 represents locomotive, a portion away in order to show a firebox embodying my invention. Fig. 2 represents an end elevation of thesame showing the control for the auxiliary steam supply device, ceraside elevation of a thereof being broken Specification of LettersIPatent.

, preferably Patented Dec. 10, 1912.

Serial No. 602,754.

. tain of the parts being omitted for the sake of clearness. Figs. 3 andt represent sectional details of a valve structure shown in Fig. 2. Fig.5 represents a section on line m-m Fig. 1. Fig. 6 represents a sectionon line y-y Fig. 1. Fig. 7 represents a portion of the injector controlmechanism. Fig. 8 represents a detail of one of the injector valves inclosed position. Fig. 9 represent-s a detail of the same in openposition. Fig. 10 represents a detail of the main control valve. Fig. 11represents a detail partly broken away, of the superheater box. Fig. 12represents one of the steam nozzles. Fig. 13 represents on a largerscale, a cross section, through the combustion chamber showing the steamdistributing means partly in elevation and partly in section. Fig. 14;represents, on a larger scale, a part section and part elevation of thesuperheater box. Fig. 15 represents, on an enlarged scale, a portion ofthe mechanism showing the means for oper ating the valves in unison.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, 1 designates a fire box of a locomotive typeof boiler, the same being formed in the usual manner by the inner shell2 and the outer shell 3, said Thells forming between them the usualwater eg e.

5 designates a plurality of grate bars forming the grate proper at thelower portion of the fire box, said grate bars being of anydesired'construction adapted to carry out the required functions. Air ispassed through the grate bars 5, in the present instance, from thebottom of the fire box and directed thereto by means of the open-endedshield 6, which serves to deflect a current of air beneath the gratewhen the locomotive is running and thereby produce the necessary draftto support combustion.

'7 designates suitable conduits located beneath the grate bar 5 andprovided with perforations 8 adapted to discharge steam through saidgrate, thus mixing it with the air supplied from the shield 6. Theseconduits 7 are connected by a pipe 9 to a suitable source of steamsupply, such as the dry pipe 10.

11 designates a header located at each side of the fire thereof, thesaid header being adapted to box and preferably exterior receive steamfrom a supply pipe 12 connected to a pipe 13, the admission of steam tothe latter, in the present instance, being controlled by an automaticregulator presently to be described. Each header 11 has a plurality ofconduits 14 arranged in pairs for each inlet, one conduit, at eachinlet, having a nozzle 15 and the other conduit, at each inlet, having anozzle 16, whereby there are two nozzles, 15 and 16, in sets at eachinlet and in alinement with their respective air inlets 17 formed in thewalls of the fire box 1 and passing through the water leg 4.

It will be noted that the nozzles 15 of each set of nozzles terminate ata pcim exterior of the inlets 17 while the other spreader nozzles 16,the ends of which are shown in detail in Fig. 12, extend into the inlets17 whereby a double injector action is provided in order to draw in thenecessary supply of air with the steam, while the nozzles 16 serve tospread or distribute the air and steam as will be evident. Each inlet 17is controlled, as here shown, by means of a valve 18, suitably pivotedat 19 and having a cut away portion 20 therein to permit the nozzle 16to pass therethrough. It will be noted that the action of this valve 18in closed position is to cut off a supply of air to the respectiveinlets and also closes the inlets 17 with respect to one set of nozzles.It is preferable to provide means for operating the several valves inunison and for this purpose I provide a bar 21 which is suitablyconnected at 22 to each of the valves 18 and also joined to the pistonrod 23 of a piston 24 in the cylinder 25. The cylinder 25 is connectedby a pipe 26 to a suitable source of steam supply controlled by theregulating mechanism already referred to, by which it is operated toopen the valves 18, at predetermined times. A spring 27 is connected bya lever 28 to the rod 21 and serves, in the present instance, to returnthe valves to normal or closed position. In order to operate the valves18 manually ahand lever 29, suitably pivoted at 30'to the shell 3 orlike fixed part, joins the rod 21 by the connection 31. In order toreturn the lever 29 to normal position, a spring 32 is employed, thefunction of which is perfectly obvious. A bar 21 suitably connected withthe bar 21 is connected with each of the lower set of valves in orderthat all of the valves will be operated in unison.

33 designates a steam box or superheater device preferably disposedtransversely of the fire box, in the present instance being secured tothe rear wall thereof and suitably positioned with respect to the staybolts 34, as will be apparent by reference to Fig. 2.

35 designates a compartment formed within the box 33 by means of apartition wall 36 which forms, with the box walls, a space or conduit 37through which live steam is passed prior to entering the compartment Itwill be noted that the box 33 is preferably provided with a plurality ofdischarge nozzles 38 for the purpose of delivering steam outwardly intothe fire box and these nozzles are preferably arranged to eject steam invarious directions across the interior of the fire box in order that thesteam and products may be thoroughly mixed. In order to regulate thedischarge of steam from the compartment 35, I preferably employ both amanual and an automatic mechanism, the same consisting, as hereindisclosed, of a steam chest 39 receiving steam from the pipe 40 which ispreferably supplied by suitable connection to the dry pipe 10. A branchpipe 41 leads from the pipe 40 to the conduit or passage way 37 and hasa valve 42 therein to control the admission of steam to the saidconduit, while a pipe 43 leads from the opposite side of the passage 37to one side of a pressure operated valve 44. The opposite side of thevalve 44 communicates with a pipe 45 leading to the compartment 35 sothat when the said valve is open, steam has free access to the nozzles38 and is discharged into the fire box. The valve 44 is controlled, inthe present instance, by an arm 46 suitably pivoted to. a stationarypart and connected to the stem 47 of the valve 44 and having connectionalso by a rod 48 to the piston 49. The arm 46 is maintained in normalposition as here shown, through the medium of a spring 50, the operationof which will be readily understooc. The piston 49 is located in asuitable cylinder 51, with which the pipe 13 communicates, it beingnoted that this pipe 13 has connection by way of pipe 12 and pipe 52with the steam chest 39.

53 designates a suitable exhaust conduit for the cylinder 51.

The valve 54 is preferably located in the pipe 13 for manual control, ifdesired. The supply of steam to the pipe 13 is controlled, in thepresent instance, by means of a slide valve 55 located in the cylinder39 and which also governs the exhaust pipe 56 in which is located avalve 57 for a purpose to be hereinafter described.

58 designates a spring secured to the slide valve '55 for the purpose ofoperating the valve in one direction while movement in the oppositedirection is accomplished by the closing of the furnace door 59, itbeing noted that a link 60 and rod 61 form a suitable connection betweenthe valve 55 and door 59. The construction just described permits thespring 58 to open the valve as soon as the furnace door is opened, whilethe closing of the door brings the valve to closed position against thetension of the spring 48, it being noted that the connection 7 betweenthe rods 60 and 61 is a lost motion connection to prevent breaking ofthe sev eral parts.

In the operation of the device, the steam normally passes by way of pipe40, pipe 41, passage way 37 of box 33 and pipe 43 to the valve 44,through which it. has no escape as long as the same is closed. As soon,however, as the furnace door is opened to re lenish the fire or thelike, the valve 55 is shifted by the spring 58 to permit the pipe 52 tobe opened todirect flow of steam from the supply pipe 40, the pressurethereof raising the piston 49 and operating the arm 46. The movement ofthe arm 46 causes the valve 44 to open and permit steam to flow frompipe 43 by way of pipe 45 to the compartment 35 and there be dischargedthrough the nozzles 38. Closing of the furnace door 59 shifts the valve55 and brings the valvechest 39 into communication with the exhaust 56so that the piston 49 is relieved of pressure and the spring 50 returnsthe arm 46 to close the valve 4 The function of the valve in the exhaust56 is to afford a means for retarding the return of the cylinder so thata dash pot effect is provided which maintains the valve 44 open for apredetermined length of time. For manual operation of the mechanism aby-pass and valve 62 are positioned between the pipes 45 and 43 so thatshould it be desired to admit steam to the compartment 35 at a time whenthe furnace door is closed it only becomes necessary to open this valve62, whereupon steam is passed around the valve 44 and passes directly tothe desired point. In connection with the opening of the valve 55 itwill be noted that the steam which passes through the pipe 52, has adivided path, one branch of which leads by way of pipe 12 to the headers11, another branch by way of pipe 26 to cylinder 25 while the third ormain branch leads directly to the cylinder 51, as before described. Thesteam entering the cylinder 25 shifts the piston 24, thereby openingsimultaneously the several valves 18 in order to allow the steam whichnow has communication with the headers 11, to be discharged through theseveral nozzles 15 and 16, this action bringing a supply of air throughthe ports 17 into the fire box to be mixed with the discharging steam.

The conduits 7 normally deliver steam below the grate 5 during theoperation of the locomotive though the supply may readily be regulatedmanually through the medium of valve 63.

It will now be apparent that I have devised a noval and usefulconstruction of an induced draft and smoke consumer which embodies thefeatures of advantage enumerated as desirable in the statement of theinvention and the above description, and

while I have, in the present instance, shown and described a preferredembodiment thereof which has been found in practice to give satisfactoryand reliable results, it is to be understood that the same issusceptible of modification in various particulars without departingfrom the spirit or scope of the invention or sacrificing any of itsadvantages.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a device of the character stated, a locomotive boiler, a fire boxtherefor having a plurality of air inlets in opposite walls thereof, asuitable grate, a plurality of sets of steam nozzles alined with saidair inlets, one set of said nozzles projecting into said air inlets andthe other set terminating exteriorly thereof, a superheater boxtransversely disposed in said fire box, and provided with a plurality ofsteam discharge nozzles, means for conducting steam to said superheater,a furnace door for said fire box, and means controlled by the movementof said door for regulating the flow of steam to said steam nozzles.

2. In a device of the character stated, a locomotive boiler, a fire boxtherefor having a plurality of air inlets in opposite walls thereof, asuitable grate, a steam header located at each side of said fire boxadjacent said inlets and communicating with the steam space of saidboiler, a plurality of sets of nozzles alined with said openings andconnected to said headers, one set of said nozzles projecting into saidinlets and the other set terminating exteriorly thereof, a valve foreach inlet, means for simultaneously operating all of said valves, afurnace door for said fire box, and means controlled by the movement ofsaid door for controlling the operation of said valve means.

3. In a device of the character stated, a locomotive boiler, a fire boxtherefor having a plurality of air inlets in opposite walls thereof, asuitable grate, a steam header lo cated at each side of said fire boxadjacent said inlets and communicating with the steam space of saidboiler, a plurality of sets of nozzles alined with said openings andconnected to said headers, one set of said nozzles projecting into saidinlets and the other set terminating exteriorly thereof, a valve foreach inlet, means for simultaneously operating all of said valves, afurnace door for said fire box, means controlled by the movement of saiddoor for controlling the operation of said valve means, and manual meansfor operating said valves.

4. In a device of the character stated, a locomotive boiler, a fire boxtherefor having a plurality of air inlets in opposite walls thereof, asuitable grate, a plurality of sets of steam nozzles alined With saidair inlets, one set of said nozzles projecting into said air inlets andthe other set terminating exteriorly thereof, a superheater boxtransversely disposed in said fire boX and provided With a plurality ofsteam discharge nozzles, means for conducting steam to said superheaterbox, and means for regulating the flow of steam to said steam nozzles.

5. In a device of the character stated, a locomotive boiler, a fire boxtherefor having a plurality of air inlets in opposite Walls thereof, asuitablegrate, a steam header located at each side of said fire boxadjacentsaid inlets, and communicating with the steam space of saidboiler, a plurality of sets of nozzles alined with said openings andconnected to said headers, one set of said nozzles projecting into saidinlets and the other set terminating exteriorly thereof, a valve foreach inlet, means for simultaneously operating each of said valves, and

means for controlling the operation of said alve means;

' DANIEL GOFF. WVitnesses O. D. MoVAY, F. A. NEWTON. I

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

